.Easy, wireless installation.
. Easy maintenance.
. Has atest button.
. Loud Alarm (>85Db).
. Power source - 9v battery.
. Low voltage alarm -6.2-6.8v
. Low battery alert -7-15 Days
Material: ABS Plastic
Battery Life: About 1 year
Alarm Reset: Automatic When Smoke Clears
Power Source: 9V Battery included
Alarm current 15mA
Operating voltage: DC9V
Alarm indication: Red LED flash and sound
Size: Ø102*35mm (with base)
Weight: 200g (with battery)
Standby current: 8μA
Operating Temperature: 40°F to 100°F (4.4°C to 37.8°C)
Relative Humidity: 10 to 85% RH, non-condensing
Buzzer Output: louder than 85dB at 10 feet (3m)
Self-Check Function: Yes
Interconnection: Up to 40 units (optional)
Low Battery Warning: Up to 30days warning signal
Certificates: CE, ROHS, EN 1460